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Superabrasive
Owner’s Manual – Lavina® 38GR-S
1/2013
LAVINA® 38GR -S User Manual
Tech Support Line: 800-987-8403 | www.superabrasive.com | [email protected]
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Superabrasive
Owner’s Manual – Lavina® 38GR-S
1/2013
TABLE OF CONTENTS
Table of Contents ..................................................................................... 2 1. GENERAL INFORMATION ...................................................................... 3 Manufacturer ........................................................................................... 3 General Description ................................................................................. 3 Machine characteristics ........................................................................... 3 ®
Lavina 38GR‐S Main design ..................................................................... 3 Environmental Conditions ........................................................................ 4 Vacuum Connection ................................................................................. 4 Technical Data .......................................................................................... 4 Vibrations ................................................................................................. 4 Sonorous Emissions ................................................................................. 4 Label Data ................................................................................................ 4 Customer Service ..................................................................................... 4 2.SAFETY ISTRUCTIONS ............................................................................ 5 Recommended Use .................................................................................. 5 Prohibited Use ......................................................................................... 5 Preparation for work ................................................................................ 5 Protection Devices ........................................................................... 5 Arrest Functions ....................................................................................... 5 Safe Use ................................................................................................... 5 PROPANE SAFETY ..................................................................................... 5 FIRE SAFETY .............................................................................................. 5 Emissions ................................................................................................. 5 Hazard Communication ............................................................................ 5 Local Agencies and ................................................................................... 6 regulations ............................................................................................... 6 Residual Risks ........................................................................................... 6 Before You Begin ...................................................................................... 6 Operating Machine .................................................................................. 6 After Work is completed .......................................................................... 7 The Work Area ......................................................................................... 7 PERSONAL PROTECTIVE Equipment (ppe) ................................................ 7 Testing ..................................................................................................... 7 Operator .................................................................................................. 7 Propane cylinders .................................................................................... 7 REFUELLING Cylinders .............................................................................. 8 Storage Cylinders ..................................................................................... 8 Transporting Cylinders ............................................................................. 8 3. HANDLING AND TRANSPORTATION ..................................................... 8 Positioning the handle ............................................................................. 8 USING THE STEERING BRACKET ................................................................ 9 Flipping the machine up ........................................................................... 9 Lifting ..................................................................................................... 10 Third wheel ............................................................................................ 10 RELEASINGING THE WHEELS OF THE CARRIAGE .................................... 10 Storage ................................................................................................... 10 4.OPERATION ......................................................................................... 11 Preliminary Controls .............................................................................. 11 Control of the waterflow ........................................................................ 11 Adjusting and Mounting Tools ............................................................... 11 FRAME BLOCKING (u‐joint) .................................................................... 11 Remote CONTROL PANEL ....................................................................... 11 Local CONTROL PANEL ........................................................................... 12 INDICATION UNITS ON THE ELECTRICAL CABINET .................................. 13 Starting the Machine .............................................................................. 13 Operating the Machine .......................................................................... 13 Stopping the Machine ............................................................................ 14 Alarm ..................................................................................................... 14 5.TOOLS AND ACCESSORIES ................................................................... 14 Tool holder key ...................................................................................... 14 Foam Plate ............................................................................................. 14 Security plate for Quickchange pads ...................................................... 14 6. POPULAR TOOLS ................................................................................ 15 7. EXPLODED VIEW ................................................................................. 16 General Exploded View (fig.7.1) ............................................................ 16 TOOL HOLDER FOR MACHINES Exploded View (fig.7.2) ........................ 16 Top COVER ASSEMBLY and MOTOR SUPPORT Exploded View (fig.7.3) . 16 PLANETARY DRIVE Exploded View (fig.7.4) ........................................... 16 2
BOTTOM COVER ASSEMBLY Exploded View (fig.7.5) ............................. 17 TRANSMISSION BELT Exploded View (fig.7.6) ....................................... 17 PULLEY UNIT Exploded View (fig.7.7) .................................................... 17 CENTRAL SHAFT BEARING Exploded View (fig.7.8) ................................ 17 Top Cover Exploded View (fig.7.9) ......................................................... 18 Tool Holder Exploded View (fig.7.10) ..................................................... 18 Carriage Exploded View (fig.7.11)........................................................... 18 STEERING BRACKET Exploded View (fig.7.12) ......................................... 18 8. MAINTENANCE AND INSPECTION ....................................................... 19 REMARK ................................................................................................. 19 Cleaning .................................................................................................. 19 Check Daily ............................................................................................. 19 Check and replace after the first 8 Working Hours ................................. 20 Always use 30HD or 10W30 engine oil with all of the following ratings: SF, SG, and CC ......................................................................................... 20 Check and replace Every 50 Working Hours ........................................... 20 Check Every 200 Working Hours ............................................................ 20 Check Every 400 Working Hours ............................................................ 20 Check Every 1000 Working Hours .......................................................... 20 Vacuum .................................................................................................. 20 Water Leaks ............................................................................................ 20 Electrical System .................................................................................... 20 Mechanical Parts .................................................................................... 20 CARRIAGE WHEELS ................................................................................. 21 BATTERY OF THE DRIVING ...................................................................... 21 Baterry of the PANEL .............................................................................. 21 Lavina®38GR‐S Electrical sYstem ........................................................... 22 9. TROUBLESHOOTING ........................................................................... 28 Index of Problems and Solutions ............................................................ 28 9.1 ENGINE ............................................................................................. 28 9.2 CHECKING AND CHANGING OIL ........................................................ 28 9.3 separating the HeaD FROM the CARRIAGE ....................................... 28 ............................................................................................................... 29 9.4 dismounting/mounting the engine ................................................... 30 9.5 Replacing the clutch ......................................................................... 30 9.6 DISMOUNTING AND MOUNTING TOOL HOLDERs TO CHANGE BUFFERS AND SPIDERs, CHANGING V‐RINGS AND FELT‐RINGS .............. 31 9.7 Tensioning used planetary Belt ........................................................ 32 9.8 Mounting and tensioning a new planetary belt ................................ 33 9.9 tensioning and replacing the motor support belts ........................... 33 9.10 tensioning and replacing the TRANSMISSION BELT ........................ 36 9.11 replacing the PULLEYS .................................................................... 36 9.12 replacing the wheel ........................................................................ 37 9.13 replacing the BATTERY .................................................................... 37 9.14 replacing the Water tank ................................................................ 37 ............................................................................................................... 37 10. WARRANTY AND RETURNS ............................................................... 41 ®
Return Policy for Lavina 38GR‐S ............................................................ 41 11. DISPOSAL .......................................................................................... 41 12. MANUFACTURER’S CONTACTS ......................................................... 41 13. SPARE PARTS .................................................................................... 42 13.1. LAVINA®38GR‐S General Parts .................................................... 42 13.2. LAVINA®38GR‐S TOOL HOLDER FOR MACHINES Parts ................ 42 13.3. LAVINA®38GR‐S Top COVER ASSEMBLY and MOTOR SUPPORT Parts
............................................................................................................... 42 13.4. LAVINA®38GR‐S PLANETARY DRIVE Parts ................................. 43 13.5. LAVINA®38GR‐S BOTTOM COVER ASSEMBLY Parts .................... 43 13.6. LAVINA®38GR‐S TRANSMISSION BELT Parts ............................ 44 13.7. LAVINA®38GR‐S PULLEY UNIT Parts ........................................... 44 13.8. LAVINA®38GR‐S CENTRAL SHAFT BEARING Parts .................... 44 13.10 LAVINA® 38GR‐S Engine Base Parts ............................................. 45 13.11. LAVINA®38GR‐S Carriage Parts ................................................. 46 13.12. LAVINA®38GR‐S STEERING BRACKET Parts ............................... 47 13.13 LAVINA®38GR‐S Tool Holder Parts .............................................. 47 13.14 LAVINA® 38GR‐S Engine parts ...................................................... 48 13.15 LAVINA® 38GR‐S Tank assembly parts ...................................... 48 LAVINA®38GR‐S Control Box Parts ....................................................... 49 Owner’s Manual – Lavina® 38GR-S
Superabrasive
1/2013
1. GENERAL INFORMATION
This owner’s manual is intended for the operator of the Lavina® 38GR-S machine, the servicing technician as well as for
anyone involved with operating or servicing the machine. We recommend that you read the instructions very carefully
and follow them strictly. The manual includes information about assembling, using, handling, adjusting and maintaining
your Lavina® 38GR-S floor grinding and polishing machine.
MANUFACTURER
Superabrasive was founded in 1987, as a manufacturer of high quality diamond tools for the stone and concrete
industry. Today, Superabrasive is one of the world’s leading companies in the production of diamond tools and floor
grinding machinery. At Superabrasive, we strive to deliver the very best solutions to our customers, and enable them to
work more efficiently.
GENERAL DESCRIPTION
The Lavina® 38GR-S machine is intended for grinding, polishing and buffing concrete, marble, granite, limestone and
terrazzo surfaces with diamond tools.
The Lavina® 38GR-S is a three-disc machine with remote control, and can be used dry as well as wet.
For best results, use only tools manufactured or recommended by Superabrasive and its distributors.
WARNING!
The Lavina® 38GR-S machine is manufactured and fitted for the above-mentioned applications only! Every other use
may possess risks to the persons involved.
MACHINE CHARACTERISTICS
The Lavina® 38GR-S is made of two main
component sections:
LAVINA® 38GR-S MAIN DESIGN
Figure 1.1
The two main component sections, the carriage
and main head.
The wheels of the carriage are driven by two gear
boxes that allow working with the machine from
Figure 1.2
distance. The handle on the frame is adjustable in
height and enables the operator to work in a correct and safe posture.
Two halogen spotlights (Fig.1.2) enable the operator to work in darker areas. The lamp holder can be adjusted in
different positions.
Existing lighting system does not replace adequate overhead lighting.
A frame (U-joint technology) on top of the motor base is providing the main head a possible to move to all
sides and it gives more grinding capacity.
Remote Control Unit (fig.1.3)
Figure 1.4
Figure 1.3
The control panel for local operations (fig.1.4) is positioned on top of the frame and contains switching devices,
which ensure the proper functioning of the engine, LPG supply turning on/off of the electromagnetic connector/clutch.
electrical box (fig.1.1) contains the electric switching devices and inverters. There are two plugs on the top side of the
box. The left (the small one) includes the control circuits of the engine, the generator and the gas valve. The main
feeding cable is connected with a plug and socket on the right side of the box. The baterry is situated under the
elecrtrical box.
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Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
The water tank is on the opposite side of the frame, so that the weight of the water has no influence on the operation of
the machine. The water from the tank is supplied by a pump. The frame weight, on the other hand, is fully absorbed by
the driving wheels.
The propane tank is placed on a tank holder on the backside of the frame.
The Engine Kawasaki FX921V with electric clutch is mounted on the base plate and it is driving the three heads with a
belt system.
The planetary head is driven by a flat belt.
The machine has a third wheel which ensures easier movement. (Fig.1.1)
ENVIRONMENTAL CONDITIONS
The temperature range for operating the Lavina® 38GR-S outdoors is between 41°F and 86°F or 5°C and 30°C. Never
use the Lavina® 38GR-S during rain or snow when working outdoors. When working indoors, always operate the
machine in well-ventilated areas.
VACUUM CONNECTION
A connection for a vacuum dust extractor is located on the carriage. The Lavina® 38GR-S does not include a vacuum
dust extractor. The customer must purchase the vacuum dust extractor separately. The hose of the vacuum extractor
must be Ø 76 mm/3 Inch and can be glided over the three-way pipe. The vacuum dust extractor must be adapted for
floor grinders and have a minimum air displacement of 500m3/h with a negative vacuum of 21 kPa.
TECHNICAL DATA
Engine
Capacity of engine
Power
Tool holder rpm
Engine rpm
Working width
Tool holder diameter
Weight
Grinding pressure
Application
Vacuum hose port
Water attachment
Water tank capacity
Propane tank capacity
Water feed
Third wheel
AMG Battery
Remote control battery
Machine LxWxH
Packing LxWxH
LAVINA® 38GR-S
Kawasaki FX921V
999cc
61.0cu.in
23.1 kW
31 HP
416-750 rpm
2000-3600 rpm
965.2 mm
38”
3 x 335 mm
3 x 13.2”
632 kg
1393 lbs
260; 320; 350 kg
573;705; 771 lbs
wet and dry
76 mm
3”
Quick change for ¾” hose
46 l
12 gal
15.2 kg
33.5 lbs
Peripheral and front stream with pump
yes
12V/35AH
Rechargeable battery size AA 1.2V
2800x1000x1350 mm
110.2”x39.4”x53.1”
1565x1100x1680 mm
61.6”x43.3”x66.1”
VIBRATIONS
The vibrations of the machine are within the limits of directives and harmonized standards from the European Union
when the Lavina® 38GR-S is operated with the recommended tools and in normal conditions.
SONOROUS EMISSIONS
The sonorous emissions are within the limits of directives and harmonized standards from the European Union when
the Lavina® 38GR-S is operated with the recommended tools and in normal conditions. However, as previously stated,
the operator must wear ear protectors.
LABEL DATA
The data on the label provides the correct voltage, kW and RPM (needed for operational purposes);
Weight (needed for transportation purposes); production year and serial number (needed for maintenance purposes).
CUSTOMER SERVICE
For customer assistance and technical support call your local distributor or call Superabrasive Inc. at
1-800-987-8403 or visit us at www.superabrasive.com , where you can download a copy of this manual.
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Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
2.SAFETY ISTRUCTIONS
RECOMMENDED USE
The Lavina® 38GR-S machine is designed and
manufactured to grind and polish concrete, terrazzo and
natural stone floors. It can be used for renovations as well
as for polishing. The machine is designed for dry or wet
use. When using it dry, use a vacuum of appropriate size.
For more information, please refer to the chapter on
handling the vacuum connection.
PROHIBITED USE
The machine MUST NOT be used:
For applications different from the ones stated in the
General Description chapter.
For not-suitable materials.
In environments which:
Possess risks of explosion
Possess high concentration of powders or oil substances
in the air
Possess risks of fire
Feature inclement conditions.
Possess electromagnetic radiation.
In nursing homes, hospitals, day-care centers, etc
In areas where loose tiles or other objects are preventing
proper use of the machine.
In rooms without proper ventilation
PREPARATION FOR WORK
Make sure that:
You have closed the work area, so that no person
unfamiliar with operating the machine can enter the area
The tool plate and tools are adjusted to the machine
properly
There are no missing parts of the machine
The machine is in upright working position
The protection devices are working properly.
PROTECTION
DEVICES
The machine is equipped with
several protection devices including the following:
An emergency stop button
A protection skirt and a hood for protecting the tool plates.
These devices protect the operator and/or others persons
from potential injuries. Do not remove them. On contrary,
before using the machine, please ensure that all
protection devices are mounted and function properly.
ARREST FUNCTIONS
Functions of arresting of the
machine are following:
Switch to stop the engine
Button to stop the grinding movement
Close the propane tank
SAFE USE
The Lavina® 38GR-S is designed to eliminate all risks
correlated with its use. However, it is not possible to
eliminate the risks of an eventual accident with the
machine. Unskilled or uninstructed operator may cause
correlated residual risks. Such risks are:
Position Risks due to operator’s incorrect working
position
5
Tangling up Risks
due to wearing inappropriate
working clothes
Training Risks due to lack of operational training
NOTE: In order to reduce all consequences of the abovementioned risks, we advise that machine operators will
follow the instructions in the manual at all times.
PROPANE SAFETY
Propane is a flammable gas whose vapors are
heavier than air. As is the case with gasoline, propane can
explode if the proper cautions are not heeded. Propane is
odorized with an agent having a distinct odor that is
recognizable at very low concentrations. This helps in
identifying leaks, even when they are small.
Awareness and basic safety precautions are
required when working with propane. As long as these
precautions are followed, risk is negligible. Ignorance,
however, could pose needless risk.
The two greatest hazards with propane powered
floor care machines are:
- Carbon Monoxide Poisoning: This is the most
frequently reported incident associated with propane
powered floor care machines and is caused by excessive
exhaust emissions. The symptoms are headache,
dizziness and nausea. A major cause involves engines
with poor preventive maintenance practices, usually those
with dirty air filters and machines operated in confined
areas without adequate ventilation. Another cause may be
substandard, inexpensive machines with no emissions
control technology and improperly set carburetion.
- Overfilled Fuel Cylinders: Nearly all fire related
incidents reported result from bringing a cylinder into a
building without first checking for overfill. This action is
dangerous, unwise, and unnecessary.
FIRE SAFETY
Be aware of the potential dangers of fire or
explosion when using propane, and take normal fire-safety
precautions.
Fire: There is a possibility of fire from LPG vapor leaking
or venting from fuel cylinders or carburetion equipment.
Explosion: LPG vapor concentrated or confined to a
small, restricted space may explode or ignite.
Propane may experience a BLEVE, a boiling liquid
expanding vapor explosion.
EMISSIONS
All propane powered floor care machines produce
emissions. Most are harmless, but some are dangerous
and can be fatal. Carbon monoxide (CO) poses the
greatest risk, since CO can be lethal within as little as 30
minutes exposure at 3,000 parts per million (ppm)
concentration.
Carbon monoxide is an invisible, odorless,
colorless gas created when fossil fuels (such as gasoline,
wood, coal, propane, oil and methane) burn incompletely.
HAZARD COMMUNICATION
A Material Safety Data Sheet for propane
shall be posted in all buildings where propane
will be used. Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
Because propane is odorized, it is easily detected at approval does not signify that the engine is safe to use
levels of just a few parts per million, which is much less indoors.
than the exposure limit of 1000 parts per million.

CGA
If you smell propane while operating a propane floor The Canadian Gas Association (CGA) has set a limit of
1500 ppm CO in exhaust flow.
care machine, do the following:
Stop the engine:

OSHA
1. Pull the throttle to the stop position (if present) or
For propane powered machines used indoors, the
turn the key switch to the off position.
Occupational Health and Safety Administration (OSHA)
2. Shut off the service valve on the propane
has established a limit of 50 ppm CO for 8-hour time
cylinder.
weighted average (TWA) in ambient air and is considering
3. Move the floor machine to a well-ventilated area.
a limit of 800 ppm CO in exhaust flow.
4. Remove the cylinder from the machine and take it  DOT
outside the building.
The Department of Transportation (DOT) has established
5. If the cylinder is leaking, contact a DOT approved
regulations regarding the safety of fuel cylinders including
repair shop to determine the cause of the leak
the ones used on propane powered floor care machines.
and have the shop, not you, repair it.

Local Agencies
If a fire occurs while the machine is being operated, Local law enforcement agencies such as the local Fire
Marshall also rely on independent testing labs such as UL
do the following:
1. Stop the engine: pull the throttle to the stop
and CGA before giving their approval of the use of some
position (if present) or turn the key switch to the
equipment. These labs thoroughly test equipment and
off position.
submit their stamp of approval only after rigorous testing.
2. Shut off the service valve on the propane cylinder
While not being required by all law enforcement agencies,
if possible. Be careful not to be burned.
the stamp of approval by these agencies further assures
3. Move the machine outside if possible. If not
the operator that he or she is working with and around
possible, move it to a well-ventilated area away
safe equipment.
from flammable materials.
4. Do not attempt to extinguish the flame from a gas
NOTE: In order to reduce all consequences of the aboveleak. If you do, the gas will build up in the area
mentioned risks, we advise that machine operators will
and could re-ignite. Starve the fire by shutting off
follow the instructions in the manual at all times.
the supply of gas.
5. Have the machine and cylinder inspected before
RESIDUAL RISKS
using them again.
During the normal operating and maintenance cycles, the
operator is exposed to few residual risks, which cannot be
eliminated due to the nature of the operations.
LOCAL AGENCIES AND
REGULATIONS
BEFORE YOU BEGIN

NFPA
Operating a propane powered floor care machine Working area must be clear from any debris or objects.
requires compliance with certain safety regulations. The A first-time operator must always read the manual and pay
National Fire Protection Agency (NFPA) Standard for attention to all safety instructions.
Storage and Handling of LP Gas is the appropriate All propane connections and cables must be inspected for
authority for safe propane use. A copy of this publication potential damages.
is available through the NPFA in Quincy, MA (1-800-334- Ground wire system of the power supply must be also
inspected.
3555).
Among its regulations, NFPA #58 requires that all Perform general daily inspections of the machine and
personnel employed in the handling of propane gas be inspect the machine before each use.
trained in its proper handling and operating procedures. It Always inspect the safety devices:
also requires them to carry a written certification from The emergency break must be clear and working
their employer or training supervisor to attest to such The tool protector must be working
training. Although this is directed mainly to those who fill The machine must be clean
and transport liquid propane gas, Onyx Environmental Never operate the machine in the rain!
Solutions recommends that operators of propane Confirm that there are no missing parts especially after
powered floor care machines in public places be trained transportation, repair or maintenance.
Before filling the water tank with water make sure the
and certified as well.
With regard to operation of propane powered floor care machine is not working and the main switch is turned off.
equipment, even though NFPA 58 8-4.5 says “these Before turning on the machine make sure that the base is
machines shall be permitted to be used in buildings placed on the floor, the machine MUST NOT be in an
frequented by the public, including the times when such upright position when turned on!
buildings are occupied by the public,” Onyx OPERATING MACHINE
Environmental
Solutions
suggests
usage when Never work with the machine
without visual contact with it.
occupancy of a given work area is minimal.
Never run the machine when you are situated between the

CARB / EPA
The California Air Resource Board (CARB) and handles of the wheel
Environmental Protection Agency (EPA) also set limits for When operating the Lavina® 38GR-S, make certain that
propane-powered engines used outdoors, but CARB/EPA there is no one, but you around the machine.
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1/2013
ENERAC POCKET 60: Manufactured by Energy
Never leave the machine unattended while working.
Efficiency System
The water hose must move freely and must be damage2) ENGINE EXHUAST ANALYZERS
free.
HORIBA GAS ANALYZER
Check if the floor, you work on, is not too uneven. If this is
ENERAC 2000 COMBUSTION ANALYZER
the case, it may damage the machine.
ENERAC POCKET 60
3) DATA LOGGERS
AFTER WORK IS COMPLETED
INDUSTRIAL SCIENTIFIC CORP. MODEL STX-70
Clean the machine and its surroundings properly
CO MONITOR, Data-Logger
Empty and clean the water tank
BIOSYSTEMS INC. “TEXILOG” Data-Logger
Store the machine in a safe place
Place the Propane bottle outside in its storage

All instruments used for testing must be calibrated at
intervals recommended by the manufacturer. The
THE WORK AREA
Make certain that people or vehicles do not enter the
monitor, model number and date of calibration will be
work area.
recorded with all test results.
Avoid cables and hoses being in the way.
Always check the floor for debris
OPERATOR
The operator Lavina® 38GR-S machine must have an
PERSONAL
PROTECTIVE
adequate technical knowledge and preparation.
EQUIPMENT (PPE)
The operator must know the machine’s work environment.
Always wear safety shoes when working with the Only one operator at a time can work with the machine.
machine.
The operator must be properly trained and well instructed
All personnel in the immediate work area must wear prior operating the machine.
safety glasses with side shields.
The operator must understand all the instructions in this
Always wear safety gloves when changing the tools.
manual.
Always wear clothes suitable for the work environment.
The operator must understand and interpret all the
Always wear Carbon Monoxide Indicator badges as an
drawings and designs in manual.
extra precaution.
The operator must know all sanitation and safety
The plastic indicator contains a colored indicator button
regulations pertaining to the operation of
that darkens in the presence of Carbon Monoxide. The
The operator must have floor grinding experience.
relative darkness of the indicator button indicates the
The operator must know what to do in case of emergency
level of CO in the ambient atmosphere. Most indicator
The operator is expected to operate their equipment safely
badges have a useful life of 30 days, depending on the
and responsibly. They are responsible for the proper
concentration of contaminants, humidity, and
handling and storage of propane cylinders, identifying
temperature.
potential hazards associated with his job and avoiding
these hazards at all times.
TESTING
There are a great number of instruments offered
PROPANE CYLINDERS
on the market to test for toxic gases. Only those designed
The Propane cylinders are constructed of either
to read carbon monoxide resulting from combustion
aluminum or steel. We recommend aluminum because it
engines is considered acceptable for testing exhaust
is lighter and guards against rusting. The cylinder used on
emissions from propane powered floor machines.
propane powered floor machines is classified as a 4E240
Some instruments are used to read “ambient air”
cylinder. Its rated capacity is 33.5 lbs. and this designation
and may be damaged if used to take readings in the
refers to the model of the cylinder. Actual propane
muffler or tail pipe. Selecting the proper instrument is an
capacity achieved during filling can be less than, equal to,
important part of meeting the testing requirements.
or slightly more than 33.5 lbs. Use only UL, CTC/DOT
Generally speaking, units capable of reading in
listed cylinders.
ppm, (parts per million), at ranges from 0 to 1000 are
The propane cylinder used on the floor machine is
adequate for checking ambient air (air in the breathing
a motor fuel cylinder as listed by the Department of
zone of the operator). Instruments capable of testing
Transportation. Unlike the common 33.5-lb propane
carbon monoxide in the exhaust should be able to read
outdoor grill cylinders (which are not legal for use on
from 0 to at least 2000 ppm and should be certified by the
propane floor machines), the motor fuel cylinder has a
manufacturer for that purpose.
number of safety systems designed into it to ensure your
Some instruments and systems used for these
safety at all times.
purposes are:
There are two types of 33.5 lb. motor fuel
1) AMBIENT AIR MONITORING
cylinders.
DRAGER Model 190: Manufactured by National
Liquid draw
Drager.
Vapor draw
SENSIDYNE gas sampling system with YBThe liquid draw cylinder is used on larger vehicles
11038 Sensidyne dectector tubes
like forklifts. These machines have special vaporizing
DRAGER gas sampling system with YB-4620 carburetors to allow the propane to change from a liquid to
Drager detective tubes
a gas before being burned in the combustion chamber.
GAS-TECH Model CO-95
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Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
the nearest building opening (door or window), also away
The vapor draw cylinder is used on small
from heat and direct sunlight.
machines like the propane powered floor care machines.
Do not install the cabinet near a stairway or street
The vacuum generated by the engine draws up the
elevator as vented propane gas will seek a lower level
Propane gas vapor through the fuel system. The propane
since it is heavier than air and could find its way into the
powered floor care machine does not have an
basement of the building. Do not store cylinders full or
evaporating system and will freeze up if liquid propane is
empty inside a building or inside a vehicle. Although it is
introduced to it. It is necessary that special attention be
unlikely that propane will vent from a stored cylinder, if it
paid to ensure that neither the liquid nor the vapor draw
should, the vapor could come in contact with an ignition
cylinders be overfilled.
source such as a spark from a power tool or other
appliance and create a flash fire.
REFUELLING CYLINDERS
Do not smoke or use a device with an open flame
The proper filling of propane cylinders is a subject
when handling or transporting propane cylinders.
so important that it warrants special attention. Propane
cylinders should only be filled by qualified propane
TRANSPORTING CYLINDERS
dealers.
When transporting cylinders to a propane dealer
Most important, propane cylinders should be filled
or to a job, make sure the cylinders are securely fastened
no more than 80% of their rated capacity. The other 20%
and standing in an upright position with the service valve
is called the vapor space or headspace. This vapor can
closed.
be compressed without causing the pressure relief valve
A cylinder rattling around in the back of a vehicle
to open and vent gas to the area around the cylinder. If
and banging into other objects constitutes a hazard. Avoid
there is no headspace to allow for fuel expansion, the
dropping or banging cylinders against sharp objects.
pressure relief valve will open, releasing propane gas into
The propane cylinders are sturdily constructed but
the atmosphere. This is a very dangerous and volatile
a series of hard jolts could cause damage.
situation as there is always the possibility that enough of
Please note that any cylinder that has been filled
the vented gas could find its way down to the floor and
is always considered full, no matter how little propane gas
come in contact with a pilot light from a furnace, hot water
remains in it. This is because even when all liquid has
heater, or other source of ignition. Propane changes into
evaporated into vapor there is still some propane gas
a gas, is -44º F (-42º C). Exposing unprotected skin to
vapor left in the cylinder. Because this remaining fuel is
propane gas or liquid could result in frostbite injury.
flammable, an empty cylinder should be treated with the
All new cylinders should be vented and purged of
same careful procedures as one that is filled to the 80%
air per manufacturer’s instructions before use. Never
level with liquid propane. The only time that a cylinder is
bleed propane cylinders indoors.
considered empty is when it is new, before it has been
filled with propane.
STORAGE CYLINDERS
When transporting a propane powered floor
When not in use, propane cylinders always
machine, the propane cylinder may be strapped onto the
should be stored outside in an upright position in a
machine as long as the machine itself is firmly secured in
secure, tamperproof, steel mesh storage cabinet. This
the vehicle.
cabinet may be located next to the building but with at
Of course, spare cylinders should always be secured in an
least five feet (1.5 m) of space between the cabinet and
upright position
3. HANDLING AND TRANSPORTATION
POSITIONING THE HANDLE
Figure 3.1
Figure 3.2
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Figure 3.3
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USING THE STEERING BRACKET
By loosing the swivel bolt (Fig. 3.1-2), turn the steering bracket (Fig. 3.1-3) in position. To turn the steering bracket
down (Fig. 3.1-3) you have to turn loose the swivel bold (Fig. 3.1-2), and push it in, this for security reasons.
Figure 3.4
Figure 3.5
Figure 3.6
The handle can be positioned in three positions:
Transport position to store or to transport or to hoist the machine (fig. 3.4)
Working position (fig. 3.5) and Flipping position (fig. 3.6)
Figure 3.7
Figure 3.8
Figure 3.9
To change the handle positions pull the knob (Fig. 3.1-1, Fig. 3.7, and Fig. 3.8),
move the handle up or down.
To choose the transport-position pull the additional the security pin (Fig. 3.4, Fig. 3.9) out and put it back in when the
handle is in position. Never lift the machine on the handle without mounting this pin.
FLIPPING THE MACHINE UP
To change the tools put the handle in the flipping (upright) position (Fig. 3.10), grab the steering bracket and pull the
machine with all your bodyweight down (one foot on the control box can help) Put the bracket down on the floor (Fig.
3.11) and change tools. While putting the machine down a foot on the control box helps again.
Figure 3.10
Figure 3.11
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LIFTING
Lifting the machine by crane is possible by using the hoisting
ring mounted on the carriage (see Fig.3.12). The eye bolt
and machine construction is rated only for the weight of the
machine. Do not lift any other loads on the machine. Use
always hoisting equipment rated for 800 kg or 1760 lbs. See
to it the security pin (Fig. 3.9) is mounted.
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THIRD WHEEL
Lavina® 38GR-S has a third wheel for easier movement.Lift
the operating part using the jack wheel and with the energy
of the baterry move the machine on its own power.
Figure 3.13
Figure 3.12
Mounting/Dismounting with Pin assembly (see Fig. 3.13 1-2). While working there is a possibility to turn the wheel
support 90º(Fig.3.13).Pull out the wheel support, turn it 90 º and fix again.
RELEASINGING THE WHEELS OF THE CARRIAGE
If on some reason the movement of the machine is not possible on its own power (using the third wheel), it can
be done on the two wheels of the carriage by the operator.
Each of the wheels can be released from gearing to the driven shaft by unscrewing the bolt (Fig.3.14-1) by 3 revs.
This way is released the saw-edged bush, which transmits the movement between the shaft and the wheel. To
unscrew the bolt you need a wrench 19mm (3/4 in) (Fig.3.15). When turning on/off the connector of the wheel is
good to lift the carriage so the wheel does not touch the floor and has free rotation (Fig.3.16).
Figure 3.14
Figure 3.15
Figure 3.16
STORAGE
Always store and transport the Lavina® 38GR-S in a dry place. Never transport the Lavina® 38GR-S unprotected; it may
be damaged if transported unprotected during rain or snow.
When during the storage of the machine the temperature may fall down to or less 32F (or 0o C) you should
empty the water from the system using following steps:
‐ Pull out the hose of the tank (Fig.3.17) (Fig. 3.18 -3).
‐ Включете помпата и превключете крана(Fig. 3.18 -4) в двете му положения, докато излезе водата от
маркучите..
‐ Извадете двата маркуча
(Fig. 3.18 -1 и 2) и повторете отново
предходната процедура. Закачете
отново всички маркучи.
Figure 3.17
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4.OPERATION
PRELIMINARY CONTROLS
Inspect the working area as explained in the safety instructions. For wet use, fill in the water tank when the electrical
cable is disconnected. Connect the vacuum extractor and ensure that the vacuum hose is clear and it will follow the
machine easily. Plug in the machine and make sure that the power cord is free to follow the working direction of the
Lavina® 38GR-S.
CONTROL OF THE WATERFLOW
The operator can choose
the water sprays with valve
(Fig.4.2 -1)in the front
(fig.4.1) when the level of
the tap is in the vertical
position , when the level is
in the horizontal position
water will spray under
cover of the machine.
Figure 4.1
Figure 4.2
Figure 4.3
The valve (Fig. 4.2 -2) is controlling the flow of an external water supply. The valve (Fig. 4.2 -4) should be closed for
external water supply, not to allow water leak to the tank. A ¾” water tube can be attached to the quick connection (Fig.
4.2 -3).
The flow regulating valve located on the tank (Fig.4.3) is increasing or reducing the waterflow to the working area – in
front of the machine or under the main head cover of the machine.
ADJUSTING AND MOUNTING TOOLS
Figure 4.3
Mount the tools only after ensuring that there is nough
diamond bond material left. Be sure that the plates are
always clean before mounting. WARNING: Secure always
the“Quickchange” pads with the security plate (Fig.4.3), lock
with the tool holder key (Fig.5.3). Diamond tools with Velcro
are attached on three foam plates of 13.2 inch (Fig.4.4). The
foam plates are mounted on the key lock (butterfly).Always
use the tool holder key (Fig.5.3).
Figure 4.4
FRAME BLOCKING (U-JOINT)
The relation between the working head and the trolley is the frame (U-joint), which
allows rotation about two perpendicular axes to better follow the profile of the floor.
The movement round one of axis can be blocked with two screws to the plank,
mounted on the front of the frame(Fig.4.5). Unscrew the bolts and turn the plank so it
fixes the frame to the carrier with its tooth and then tighten the bolts(Fig.4.6). Thus
the lateral movement of the machine is blocked.
Figure 4.5
REMOTE CONTROL PANEL
The Control Panel can work connected to the machine or as a remote control device.
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Figure 4.6
Owner’s Manual Original Language – Lavina ®38GR-S
Figure 4.7
Figure 4.8
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Figure 4.9
When it is connected to the machine it has to be on the support of the handle bar where on the bottom is mounted the
transmitter of the panel. Unscrew the protection closure of the panel (Fig.4.6), then unscrew the nut of the plug
connecting the cable to the transmitter and connect the plug to the panel (fig4.8.). Put the protection closure to the
transmitter (fig 4.9).
When the panel is working as a remote control device the cable should be connected to the transmitter.
1. Plug with closure used to connect the panel to the
machine through a cable
2. Emergency STOP button
used
in
Emergency
situations for stopping the machine. Turn on/off the panel.
3. Switch Reset
- forward position activates the initial setting on the
control panel
- back position resets the alarm of the inverters
4. Start/Stop clutch
Start will electronically activate the
grinding plates to spin, by pushing stop it will disconnect
engine from grinding heads
5. Switch on/off the spotlights
6. Joystick presets the moving direction of the machine
7. Free switch
8. Switch presets moving speed of the machine
Figure 4.10
9. LCD – Display :
- indication of the preset rotation speed of the working plates
- indication of the preset speed of the machine
- emergency stop button report
- report - "inverter fault"
- movement direction "forward"
- movement direction "back"
10. ON/OFF switch starts/stops the engine
11. ON/OFF switch control the water pump
LOCAL CONTROL PANEL
1. Remote/Local/Start Engine switch
In position "Remote" the machine is controlled by
REMOTE CONTROL PANEL.
In position "LOCAL" the REMOTE CONTROL PANEL
is not functioning and the machine is controlled by the LOCAL
CONTROL PANEL.
In this position the engine is in contact and it starts
after switching the switch to fully right position. After releasing
the switch returns to "LOCAL".
2. Water pump switch Lights orange when the water pump is
working.
3. Ready switch „ON/OFF”
In position “ON” after lighting the button
Figure 4.11
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The machine is supplied by the battery and is ready to work.
In position “OFF” the supply of the machine is interrupted.
This is the position in which the machine should stay when the work is finished.
4. Digital RPM/workings hours indicator When the motor runs it indicates the revolutions per minute of the motor,
see the conversion table to know the rpm of the tools. When the motor does not run, it indicates the worked hours.
The hour meter will blink between 48-52 hours as a reminder for oil change.
5. Start/Stop clutch Start will electronically activate the grinding plates to spin, by pushing stop it will disconnect
engine from grinding heads
6. Emergency stop button used in Emergency situations for stopping the machione.
7. Throttle Push forward to accelerate.
INDICATION UNITS ON THE ELECTRICAL CABINET
1. Indicator lamp "BATTERY" for charging the battery.
Lights when starting the engine and then extincts. The lighting of the lamp during operation of the engine indicates
faults in the battery charging system.
2. Indicator lamp "FUEL" for LP Fuel Lockoff valve. Lights continuously
during operation.
Figure 4.14
STARTING THE MACHINE
NEVER WORK WITH THE MACHINE WITHOUT VISUAL CONTACT WITH IT.
ATTENTION: Never run the machine when you are situated between the handles of
the wheel. First turn the handles as shown on Fig.4.15.
If working wet, pour water on the floor. If working on dry surface, skip that step and
connect and switch on the vacuum cleaner.
First, follow the directions in chapter Safety Devices and "SAFETY
INSTRUCTOINS". Check oil level. Open (counterclockwise) the service valve on
the propane tank about one and a half turns. Turn the switch (Fig.4.11-1) on
position "Remote" and switch Ready on position "ON" and wait to light. Next, see
to it the Start/Stop clutch button (Fig.4.10-4) is in stop position check the throttle
Figure 4.15
(Fig.4.11-7) in the IDLE position. Check "emergency stop button" (Fig.4.11-6) to be
sure that the machine is in working condition.
To start the engine press " Motor on" (Fig.4.10-10), hold untill the engine starts and then release. Set the required speed
(Fig.4.10-8), push "Clutch ON" and with the joystick (Fig.4.10-6) chose the desired direction.
OPERATING THE MACHINE
Guide the machine in straight lines across the floor, and with each new line overlap a little bit of the previously
completed surface. Work at a constant speed allowing the tools time to work at a speed appropriate for the tools’ grit
size. Avoid vibrations. Do not stop the machine in one spot while the tools are still working because they will leave
marks on the floor surface. When working wet, preliminary chose with the water tap (Fig.4.2-1) the position for water
feed and periodically start the pump (Fig 4.10-11) to release water onto the floor surface. Starting the pump is possible
only if the machine motor is on. When working dry, check the floor surface periodically to ensure that dust is not
accumulating on it. Check regularly if your vacuum works properly. In case you need you may turn on the lights
(Fig.4.10-5).
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STOPPING THE MACHINE
The machine can stop by switching the joystick in opposite position to the moving direction.
The stopping of the machine should be after the motor stops. Do not stop moving the machine before stopping
the motor rotation. Otherwise it could damage the surface.
To stop the machine engine use switch "Motor off"(Fig.4.10-10). Use "Emergency stop button" only in
emergency.
NOTE! Do not hold the machine in one spot before the engine stops to turn.
ALARM
The machine stops when the emergency stop button is activated or the inverters are shut down by emergency.
It is indicated by flickering lamp inbuilt in the switch Ready „ON/OFF”
The control panel display shows " Emergency stop " or "Inverter fault". After eliminating the accident cause
the machine is reset in working condition by releasing the emergency stop or turning on the "Inverter reset"( Fig.4.10-3).
The lighting of the lamp "BATTERY" during operation of the engine indicates faults in the battery charging
system.
Extinction of the indicator lamp "FUEL" during operation or lack of light during the ignition to start the engine
indicates a faulty valve of incoming gas or low oil level in the engine.
5.TOOLS AND ACCESSORIES
TOOL HOLDER KEY
The tool holder key (Fig. 5.1) is used for adjusting, mounting and dismounting of the
tools. Always use the key for mounting. Item number is A03.00.00.00
Figure 5.1
FOAM PLATE
Diamond tools with Velcro are mounted on the foam plate (Fig.5.2). The foam plate is
mounted on the “QuickChange System” . Item number is LV-13.5-FP-S
Figure 5.2
SECURITY PLATE FOR QUICKCHANGE PADS
Plate (Fig.5.3) used to ensure the “Quickchange” pads.
Item number is A38.00.02
Figure 5.3
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6. POPULAR TOOLS
RECOMMENDED TOOLS
QuickChange System and Tooling feature extremely fast and convenient tool
changes, and a long tool life, providing for great long-term cost savings. The
QuickChange pads are produced in four different bonds for super hard, hard,
medium and soft concrete, in a variety of grit sizes, with either 1 or 2 buttons, which
allows you to customize the aggressiveness of the cut.
Calibra grinding discs: our popular ceramic bond discs are designed for the removal
of difficult scratches and they save you valuable time by eliminating the need for
multiple passes with metal tools. They can be used wet or dry, and are best for hard
concrete applications. They are with Velcro attachment.
NATO® polishing discs feature a special resin formula designed for both wet and dry
applications and a unique design with wide channels allowing for work on a cleaner surface
and ensuring a quality polish. Available in 3 and 4 in sizes.They are with Velcro attachment.
V-HARR® Premium Polishing Pads are designed for mechanically polishing and
restoring concrete; also ideal for terrazzo and hard stone floors. V-HARR® pads are
offered in a wide variety of diameters and grit sizes to accommodate many applications.
Dry use is strongly recommended.
Shine Pro® are high quality diamond-impregnated pads for floor maintenance. Available in a
variety of sizes (17, 20, 21, 27 inch and other sizes), they are designed for use under swing
machines and burnishers, and are great for daily use – they require only water (no wax or
chemicals needed) and are a very environmentally friendly solution for maintaining floors.
Use only Superabrasive’s recommended tools see www.superabrasive.com
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7. EXPLODED VIEW
GENERAL EXPLODED VIEW (FIG.7.1) TOOL HOLDER FOR MACHINES EXPLODED VIEW (FIG.7.2) TOP COVER ASSEMBLY AND MOTOR SUPPORT EXPLODED VIEW (FIG.7.3) PLANETARY DRIVE EXPLODED VIEW (FIG.7.4) Figure 7.1
Figure 7.2
Figure 7.3
Figure 7.4
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BOTTOM COVER ASSEMBLY EXPLODED VIEW (FIG.7.5) TRANSMISSION BELT EXPLODED VIEW (FIG.7.6) PULLEY UNIT EXPLODED VIEW (FIG.7.7) CENTRAL SHAFT BEARING EXPLODED VIEW (FIG.7.8) Figure 7.5
Figure 7.6
Figure 7.7
Figure 7.8
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TOP COVER EXPLODED VIEW (FIG.7.9) TOOL HOLDER EXPLODED VIEW (FIG.7.10) CARRIAGE EXPLODED VIEW (FIG.7.11) STEERING BRACKET EXPLODED VIEW (FIG.7.12) Figure 7.9
Figure 7.10
Figure 7.11
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Figure 7.12
8. MAINTENANCE AND INSPECTION
REMARK
Tampering w/Emission Control System Prohibited
Federal law and California State law prohibits the following acts or the causing thereof: (1) the removal or rendering
inoperative by any person other than far purposes of maintenance, repair, or replacement, of any device or element at
design incorporated into any new engine for the purpose of emission control prior to its sale or delivery to the ultimate
purchaser or while it is in use, or (2) the use of the engine after such device or element of design has been removed or
rendered inoperative by any person.
Among those acts presumed to constitute tampering, involve the parts/systems listed below:

Carburetor and internal parts

Air cleaner elements

Spark plugs

Crankcase

Magneto or electronic ignition system

Cylinder heads

Fuel filter element

Breather chamber and internal parts

Intake pipe and tube
CLEANING
Keep your machine clean. Cleaning the machine on a regular basis will help detect
and solve potential problems before they cause damage to the machine. Most
importantly, check and clean the tool plate connections, power cord and plugs,
vacuum hoses, water tank and the Propane installation.
Figure 8.1
CHECK DAILY
After operating the Lavina® 38GR-S, the operator should conduct a visual
inspection of the machine. Any defect should be solved immediately. Pay attention to
plugs and vacuum hoses loose bolt or screws.
Tool holders: Buffers and spiders are consumables and must be visually checked
daily and replaced if needed. The key lock holders (butterflies) on the tool holders
should be also checked.
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Check the rubber buffers and fixing of the holders. The flange holding the buffers (Fig.8.1-1)has to be firmly
fixed to the unit. A gap seen there means that there are loose screws fixing the holder. The screws has to be
tightened immediately for safety operation.Working with loose screws on the holder could also cause bad damages
on the machine. Tightening force of the screws has to be 25...30N.m(18...22 ft/lbs).
It is very important to check regularly the screws(Fig.8.1 2),that fix the "Quickchange" holder to the safety part,
so that holder will not fly away if the buffers got damaged.
“Quickchange” should be clean. The tension of the planetary belt can be daily checked by moving the main
head and feeling the resistance of the moving pulleys, if the belt slips tighten if necessary, as described in the chapter
Troubleshooting .
CHECK AND REPLACE AFTER THE FIRST 8 WORKING HOURS
Replace the oil in the engine after the first 8 hours work, according to the instructions of the engine manufacturer.
ALWAYS USE 30HD OR 10W30 ENGINE OIL WITH ALL OF THE FOLLOWING RATINGS: SF, SG, AND CC
CHECK AND REPLACE EVERY 50 WORKING HOURS
Change engine oil, while changing check for leakage of engine oil at the various seals. The hour meter will blink
between 48-52 hours as a reminder/"Engine Oil Capacity" is 1.5L(1.6US.qt) when oil filter is not removed
;1.7L(1.8US.qt) when oil filter is removed/.
Recommended Oil Change Intervals
Do not exceed the 50-hour oil change interval. Oil changes more frequent than 25 hours will give even longer engine
life. In any case, always use 30HD or 10W30 engine oil with all of the following ratings: SF, SG, and CC. make sure the
oil level is maintained at the "FULL" level.
CHECK EVERY 200 WORKING HOURS
Every 200 working hours, the operator should inspect all parts of the machine carefully. Most importantly, inspect and
clean the tool plate connections, plugs, vacuum hoses and water tank and filter. Also, check the water flow of the pump.
Check the guard assembly. Make certain the wheels are clean and rotate properly. Inspect the control buttons. If there
are defective control parts, they should be replaced immediately. Replace worn vacuum- and water hoses.
Carefully inspect the seal rings and bearings of the grinding units, and replace any showing signs of excessive wear.
For more information, refer to chapter troubleshooting below. Open the top cover on the motor base to check of the
planetary driving belt, by moving the main head the belt should not slip on the planetary pulley and drive the pulleys.
Return machine to authorized service center for overall checkup of the Engine. For Propane safety, have the
machine serviced by a Certified Technician, including emission check.
CHECK EVERY 400 WORKING HOURS
Besides the checks of 200 working hours.
Remove the protective covers under the motor. Check the belt that moves the generator. If necessary tighten it
making sure not to “over tension”, never tighten it to the first given values. Replace it if necessary.
Return machine to authorized service center for overall checkup of the Engine. For Propane safety, have the
machine serviced by a Certified Technician, including emission check.
Return machine to authorized service center for overall checkup of the Engine. For Propane safety, have the
machine serviced by a Certified Technician, including emission check.
CHECK EVERY 1000 WORKING HOURS
Besides the checks of 400 working hours.
Dismount the tool holders and bottom cover assembly (See Troubleshooting). Check if the transmission belt and motor
support belts tension are in good condition, and change if needed.
VACUUM
As stated previously, frequently check hoses and other parts for clogging.
WATER LEAKS
Replace any leaking parts immediately as the water could damage your machine
ELECTRICAL SYSTEM
Dust should not enter the control box, as it will destroy the contacts. Remove (blow out) any dust present.
MECHANICAL PARTS
Parts such as the belt, seal rings, cap rings, spiders and buffers and guard assembly are subject to wear and should be
replaced as needed.
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CARRIAGE WHEELS
Check the pressure of the pneumatic tires and maintain it at the limits of 3.5-4 atm/50...60PSI/.
BATTERY OF THE DRIVING
The machine uses maintenance free battery. The battery
charges automatically during work.
Self propelled movement of the machine is made only
when the engine is started.
Violation of this requirement may lead to the destruction of
the battery.
The approximate battery charge level can be checked on the
Indicator Lights (Fig.8.3) that is noted in the operating manual
of the control box built-in DC-to-AC Inverter/Chargers.
Upon long outage of the machine (more than one week) it is
recommended to switch off the battery of the system by the
safety switch on the bottom part of the board (Fig.8.2) or to
unplug the battery cables.
Figure 8.2
Figure 8.3
BATERRY OF THE PANEL
The condition of the panel battery is displayed on the right upper corner of the screen. In case the batteries are run
down they should be changed or the panel to be connected with the cable (see.Fig.4.8; Fig.4.9; Fig.4.10), then the
baterries start to recharge.
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LAVINA®38GR-S ELECTRICAL SYSTEM
Main Circuit
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Control Circuit
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Power Supply
Digital Inputs
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Digital Outputs
Motion Control
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Comunication
Control panel
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Grinding Head
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9. TROUBLESHOOTING
INDEX OF PROBLEMS AND SOLUTIONS
9.1 ENGINE
When troubles occur, be sure to check the simple causes which at first, may seem too obvious to be considered. For
example, a starting problem could be caused by fuel starvation due to an empty propane cylinder or an unopened
service valve. If you do not check for this, starter burnout could result.
Some Troubles and solutions:
Surging idle
To smooth out the engines' idle characteristics, adjustment is provided by an idle screw on the lower left side of the
carburetor as viewed from the operator's position. The screw is bright steel and 1/4" in diameter with a Phillips head on
it. Rotating the screw clockwise will increase the idle speed and this should cure the "surging idle". If it does not, call our
customer service.
Engine starts and idles, but will quit as the throttle is advanced
It is possible that the propane tank's service valve is faulty. To check for this, close the valve completely and then
reopen very slowly while you listen for a "click" when the gas begins to travel through the valve. If you hear this very
slight noise, the valve is only partially opening. This allows enough gas through to start and idle the engine, but not
enough for full throttle operation. As the throttle is increased, allowing more air to enter the intake, the engine will quit
from fuel starvation. Call your dealer or the factory for instructions on where to have the service valve replaced.
Meanwhile, to get by, you can continue to open the service valve until you do not hear a “click" and then the engine will
run normally. If it does not, call your customer service.
Starter barely turns the engine over or the solenoid just clicks
The battery is likely low in charge. This can be remedied by recharging the battery using a 12 Volt battery charger at
4.12 amperes. The battery is under the control box. The positive post is the one with the RED cable attached to it.
Follow the instructions that came with the battery charger. REMINDER: this will continue to happen unless your engine
is run for sufficient time between starts to recharge the battery.
9.2 CHECKING AND CHANGING OIL
Figure 9.2.1
Figure 9.2.2
Check the engine oil level, screw the dipstick in to get reading. While changing engine oil, check for leakage of engine
oil at the various seals. The hour meter will blink between 48-52 hours as a reminder.
Recommended Oil Change Intervals
Do not exceed the 50-hour oil change interval. Oil changes more frequent than 25 hours will give even longer engine
life. In any case, always use 30HD or 10W30 engine oil with all of the following ratings: SF, SG, and CC. make sure the
oil level is maintained at the "FULL" level.
9.3 SEPARATING THE HEAD FROM THE CARRIAGE
Please note that the propane cylinder has to be removed (Fig. 9.3.1) and stored outside before any maintenance or
reparation is done.
Figure 9.3.1
Figure 9.3.2
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Figure 9.3.3
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Owner’s Manual Original Language – Lavina ®38GR-S
Figure 9.3.5
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Figure 9.3.6
Pull the connector of the battery (Fig. 9.3.2), pull out the propane hose (Fig. 9.3.3), the connectors of the LP Fuel
Lockoff valve (Fig. 9.3.3), unplug the engine cable plug from the control box (Fig. 9.3.5) and dismount the Throttle
Cable (Fig. 9.3.4). Disconnect the water and vacum hose from the main head by pulling it out (Fig. 9.3.7) (Fig. 9.3.8).
Release the pin sets (Fig. 9.3.9) and dismantle the third wheel. Release the pin sets which attach the head to the
carriage and divide the carriage from the main head (Fig. 9.3.10).
Figure 9.3.7
Figure 9.3.8
Figure 9.3.10
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Figure 9.3.9
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9.4 DISMOUNTING/MOUNTING THE ENGINE
Separate head from carriage (see previous chapter). Remove front and back belt protection (Fig. 9.4.1). Loose the
motor base plate (Fig. 9.4.2), release the tension device (Fig. 9.4.3), and take out the belt (Fig. 9.4.4). Take off the
engine (Fig. 9.4.4).
Figure 9.4.1
Figure 9.4.2
Figure 9.4.3
Figure 9.4.5
Figure 9.4.4
Reassemble in the same manner. (Fig. 9.4.5), Tension the belt with bolt (4) on (fig. 9.4.5). The belt tension can be
tested with a Frequency tension Tester Optibelt 3 TT or manual by pushing with a force of 8 kg or 17.6 lbs in point "A",
the deflection of the belt must be 3,44 mm or + 0.135 Inch.
ATTENTION:
NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER RECOVER ITS
ORIGINAL TENSION
9.5 REPLACING THE CLUTCH
Figure 9.5.1
Incase the electric clutch has to be replaced, remove the engine
(see previous chapter) and lay it on its side with the oil drainage up
(Fig. 9.5.1). Remove the motor base plate and loose the front nut
with an impact wrench to dismount the pulley and clutch (Fig.
9.5.2).
Reassemble in the same manner. Do not forget to mount back the
washer on the shaft (Fig. 9.5.3). The torque on the front nut (Fig.
9.5.2) to mount the pulley and clutch should be 68÷75 Nm or
50÷55 ft lbs.
30
Owner’s Manual Original Language – Lavina ®38GR-S
Superabrasive
Figure 9.5.2
1/2013
Figure 9.5.3
9.6 DISMOUNTING AND MOUNTING TOOL HOLDERS TO CHANGE BUFFERS AND SPIDERS, CHANGING VRINGS AND FELT-RINGS
Figure 9.6.1
Figure 9.6.2
Figure 9.6.4
Figure 9.6.3
Figure 9.6.5
Figure 9.6.6
To check or replace the buffers and the spiders, the tool holders have to be dismounted. Remove the countersunk
screws on top of the buffer (Fig.9.6.1). Take the disc off (Fig.9.6.2), the spider can be removed or replaced (Fig.9.6.3).
By loosing four Hex cap bolts (Fig.9.6.4), the disc comes loose (Fig.9.6.5) and the buffers can be replaced (Fig.9.6.6).
Attention, by mounting use always the “blue” thread locking adhesive, except on the bolts to lock the buffers (Fig.9.6.5).
Use always original bolts.
Depending on the number (3,4 or 6) of buffers, the holder can be more flexible or rigid.
Figure 9.6.7
Figure 9.6.8
Figure 9.6.9
31
Figure 9.6.10
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
When the tool holder is dismounted, you can change the sealers (V-Ring and Felt-Ring).
Take out Felt-Ring, Adaptor and V-Ring. Before mounting check on which side the
adaptor is fitting, remember the correct side. Mount the V-Ring with the smallest lip of the
V to inside (Fig.9.6.7) just push the V-ring so the top is on the same level as the pulley
top (Fig.9.6.8). Than take the adaptor in the correct way and push the V-Ring down with
the adaptor (Fig.9.6.9). The lowest lip of the V-Ring should only barely touch its gliding
surface; also never push the V-Ring down with fingers. Mount now the Felt-ring on top
(Fig.9.6.10). Close the sealers with the cap (Fig.9.6.11).
1/2013
Figure 9.6.11
9.7 TENSIONING USED PLANETARY BELT
Take the main head of the carriage, like described in the paragraph “Splitting the carriage from the main head”,
Dismount the top cover.
Noticing speed lost in planetary movement it is possible to tension the belt for planetary movement as described
in 9.8 Mounting and tensioning a new planetary belt.
Figure 9.7.1
Figure 9.7.2
Figure 9.7.3
Figure 9.7.4
Figure 9.7.5
Figure 9.7.6
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Owner’s Manual Original Language – Lavina ®38GR-S
9.8 MOUNTING AND TENSIONING A NEW PLANETARY BELT
Figure 9.8.1
Figure 9.8.4
Figure 9.8.7
Figure 9.8.2
Figure 9.8.5
1/2013
Figure 9.8.3
Figure 9.8.6
Figure 9.8.8
Dismount completely the tensioning device.
Make 2 signs on the dismounted belt exactly 10 cm out of each other (belt without tension) (Fig.9.8.1). The purpose is
to measure 10.2 cm on the belt in tension what is a tension of 2%., a maximum of 2.5% is allowed. ATTENTION:
NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DAMAGED AND IT WILL NEVER RECOVER ITS
ORIGINAL TENSION
Mount the belt back around the planetary pulley; see that the belt is behind the driving pulley (Fig.9.8.2). Put the belt
around the left roller of the tensioning device (Fig.9.8.3). Put the tensioning device back in place and pull the belt from
the roller on the right side (Fig.9.8.4). Put the belt around the driving pulley (Fig.9.8.5). Loose slightly the two bolts of
the tensioning device (Fig.9.8.6) (Fig.9.8.7).Begin to tension until the measure of 10 cm between the marks becomes
10.2 cm (Fig.9.8.8). Tighten the tensioning device while turning the bolt move the planetary head so the belt can slide.
Do not forget to lock the tensioning device.
9.9 TENSIONING AND REPLACING THE MOTOR SUPPORT BELTS
Follow the steps described in 9.4 (dismounting/mounting the engine). Pull out the engine together with the carrier plate,
and the upper timing belt (6) (Fig.9.9.1), the generator and its driving belt (stays tighten) (Fig.9.9.2). Loosen the bolts
(2)(Fig.9.9.3), unscrew and take out the bolts (1) (Fig.9.9.3). Unscrew (5) in order to pull the tensioner backward, take
out the lower timing belt (2) (Fig.9.9.1).
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1/2013
Figure 9.9.2
Figure 9.9.1
The mounting and tighting the belts is made on the reverse sequence.
 First mount the lower timing belt (2) (Fig.9.9.1). Pull the tensioner forward to screw the two bolts (1) (Fig.9.9.3)
and one screw (5) (Fig.9.9.1). Fasten lightly bolts (1)and(2)(Fig.9.9.3) and tighten the belt screwing the screw
(5)(Fig.9.9.1) or (Fig.9.9.4).
Figure 9.9.3
Figure 9.9.4
Figure 9.9.4
The belt tension can be tested with a Frequency tension
Tester Optibelt 3 TT (Fig.9.9.4) or manual by pushing with a
force of 16 kg or 35.3 lbs in point A , the deflection of the belt
must be 3.44 mm or ±0,135Inch (Fig.9.9.5). It is recommended
that the tensioning of the belt be measured with a Frequency
tension Tester Optibelt 3 TT . The tension of the belt must be
(220÷230) 1/s. When the tightening is done screw the bolts
(1)and(2) (Fig.9.9.3) and check again the tension.
ATTENTION: NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER RECOVER ITS ORIGINAL TENSION Figure 9.9.5
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Owner’s Manual Original Language – Lavina ®38GR-S
 Driving belt of the generator
1/2013
The belt can be mounted and tighten both on mounted or dismounted engine. When you do it with the mounted engine
use also the side holes for better visibility.
In case you make the change when the engine is removed obligatory make sure the upper timing belt
(6)(Fig.9.9.1) is on its place before mounting the belt of the generator.
While tensioning check regularly tension. Push the belt down in point A and with a pressure of 45N (Fig. 9.9.6). This is
approximately 4.5 kilograms or 10 pounds, with this pressure the belt should move 6.9÷7.8 mm or 0.27÷0.30inch. It is
recommended that the tensioning of the belt be measured with Optikrik I Device (Measuring range: 150÷600 N) (Fig.
9.9.7) The original pressure is P=300 N and after working a while it is P=230 N.
ATTENTION: NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER RECOVER ITS ORIGINAL TENSION Loosen the contra nuts (Fig. 9.9.8), loosen light the bolt(4) and bolt(5) of the tension device (Fig. 9.9.6), and adjust the
tension with the nut shown in (Fig. 9.9.9). When the right tension is reached: close the contra nuts and the bolts of the
support. Reassemble in the same manner.
Figure 9.9.8
Figure 9.9.7
Figure 9.9.9
Figure 9.9.8
Figure 9.9.10
Figure 9.9.6

Upper timing belt (6) (Fig.9.9.1)
The belt tension can be tested with a
Frequency tension Tester Optibelt 3 TT or
manual by pushing with a force of 8 kg or 17.6
lbs in point A (Fig.9.4.5), the deflection of the
belt must be 3.44 mm or ±0,135Inch
(Fig.9.4.5). It is recommended that the
tensioning of the belt be measured with a
Frequency tension Tester Optibelt 3 TT . The
tension of the belt must be (200÷210) 1/s.
Figure 9.4.2
35
Figure 9.4.3
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
ATTENTION: NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER RECOVER ITS ORIGINAL TENSION Screw slightly the six bolts (Fig.9.4.2) and tighten
the
belt
screwing
the
screw
(4)
(Fig.9.4.5)(Fig.9.4.3).
1/2013
When the tensioning is made then screw the six
bolts (Fig.9.4.2) and check again the tension of the
two timing belts.
Figure 9.4.5
9.10 TENSIONING AND REPLACING THE TRANSMISSION BELT
The belt tension can be tested with a Frequency tension Tester
Optibelt 3 TT or manual by pushing with a force of 24 kg or 53 lbs
in point A(Fig.9.10), the deflection of the belt must be 6 mm or +
0,23 Inch. It is recommended that the tensioning of the belt be
measured with a Frequency tension Tester Optibelt 3 TT . The
tension of the belt must be 105÷115 1/s.
NEVER “OVER” TENSION THE BELT, THE BELT WILL BE
DESTROYED AND IT WILL NEVER RECOVER ITS ORIGINAL
TENSION
To change the tension, LOOSE THE 6 BOLTS in the middle
(Fig.9.10-6), loosen also on the half moons the bolts
(Fig.9.10-8), loosen the contra nuts (Fig.9.10-9).
When the belt is tighten, screw the contra nuts and bolts in
reverse sequence.
Figure 9.10
9.11 REPLACING THE PULLEYS
Take the belt tension away (see the previous paragraph).
After removing the belts, unscrew the four bolts of the pulleys on top of the disc (Fig. 9.11- 1).
Figure 9.11
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1/2013
9.12 REPLACING THE WHEEL
Lift the lorry on the side you need to change the wheel and place an wooden part so the wheel is on the air. Unscrew
the four bolts and take the wheel.
Figure 9.12.1
Figure 9.12.2
Figure 9.12.3
9.13 REPLACING THE BATTERY
Figure 9.13.1
Figure 9.13.2
9.14 REPLACING THE WATER TANK
Figure 9.14.1
Figure 9.14.2
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1/2013
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39
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40
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1/2013
10. WARRANTY AND RETURNS
Warranty Policy for Lavina® 38GR-S If your warranty card is missing, call your local distributor and request a warranty
card or visit us at www.superabrasive.com to download one.
The customer is responsible for filling out the card and mailing it to the manufacturer’s address indicated on the card.
To ensure registration and activation of the warranty coverage, the warranty card must be mailed to the manufacturer
within 30 days from date of purchase. Failure to mail the warranty card within 30 days from date of purchase may void
the warranty. Make sure you provide the manufacturer with all the information requested, and most importantly with the
distributor’s name, machine serial number and purchase date
Superabrasive Inc. guarantees that the original purchaser of the Lavina® 38GR-S machine will be covered against
defects in material and workmanship for a period of 2 years from the date of delivery or 500 hours of use whichever
comes first.
The following conditions pertain to this warranty:
Applies only to the original owner and it is not transferable.
Machine must not be dismantled and tampered with in any way.
Covered components proven defective will be repaired or replaced at no charge. Covered components include motors,
bearings and switches.
This warranty does not apply to any repair arising from misuse, neglect or abuse, or to repair of proprietary parts.
This warranty does not apply to products with aftermarket alterations, changes, or modifications.
This warranty is in lieu of and excludes every condition of warranty not herein expressly set out and all liability for any
form of consequential loss or damage is hereby expressly excluded.
This warranty is limited to repair or replacement of covered components and reasonable labor expenses.
All warranty returns must be shipped freight prepaid.
The above warranty conditions may be changed only by Superabrasive. Superabrasive reserves the right to inspect and
make a final decision on any machine returned under this warranty. This warranty applies to new, used and demo
machines.
Superabrasive does not authorize any person or representative to make any other warranty or to assume for us any
liability in connection with the sale and operation of our products.
RETURN POLICY FOR LAVINA® 38GR-S
Lavina® 38GR-S machines may be returned, subject to the following terms:
In no case, a machine is to be returned to Superabrasive Inc. for credit or repair without prior authorization. Please
contact Superabrasive Inc. or your local distributor for an authorization and issuance of a return authorization number.
This number along with the serial number of the machine must be included on all packages and correspondence.
Machines returned without prior authorization will remain property of the sender and Superabrasive Inc. will not be
responsible for these.
No machines will be credited after 90 days from the date of invoice.
All returns must be shipped freight prepaid. All returns may be exchanged for other equipment or parts of equal dollar
value. If machines are not exchanged, they are subject to a fifteen percent (15%) restocking fee.
11. DISPOSAL
If your machine after time is not usable or needs to be replaced, send the machine back to Superabrasive or a local
distributor, where a professional disposal complying with the environment laws and directives is guaranteed.
12. MANUFACTURER’S CONTACTS
If you need to contact Superabrasive Inc. with technical support questions, below is the contact information.
Address;
9411 Jackson Trail Road, Hoshton GA 30548, USA
Email:
[email protected]
Tel.:
706 658 1122
Fax:
706 658 0357
Website:
www.superabrasive.com
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13. SPARE PARTS
ASSEMBLY AND PARTS SPECIFICATIONS
13.1. LAVINA®38GR‐S GENERAL PARTS Model
No.
Pcs.
1
Item No.
L38GR-S-10.00.00
Description
L38GR-S
Disc Assembly
1
L38GR-S
2
L32S.05.00.00
Pin Assembly
2
L38GR-S
3
MAR 8.1400
Tube
1
L38GR-S
4
L38GR-S-20.00.00
Carriage
1
L38GR-S
5
MAR 8.400
Tube
1
L38GR-S
6
L32B-00.00.00.00.01
Air Duct Three-Way
1
L38GR-S
7
SGB W1 56-59
Clamp
4
L38GR-S
8
d50xL1300
Vacuum Hose
2
L38GR-S
9
L38GR-S-30.00.00
Guard Assembly
1
33.5# TW 23.6-WC 80.0
Horizontal Aluminium
Propane Tank
1
L38GR-S
10
L38GR-S
11
109894
Throttle 96"
1
L38GR-S
12
M6x16DIN6921
Bolt
2
L38GR-S
13
Third wheel
1
Pin Assembly TW L32S
2
L38GR-S
14
L38GR-S-40.00.00
L32S-04.02.00
L38GR-S
15
HATOX Set
Remote Control Set
1
L38GR-S
16
10-16/DIN 3017
Clamp
2
L38GR-S
17
Tube
1
L38GR-S
18
Clamp
1
F0708750
13.2. LAVINA®38GR‐S TOOL HOLDER FOR MACHINES PARTS Model
No.
L38GR-S
1
L38GR-S
2
Item No.
A35.00.00
Description
Pcs.
LAVINA 38GR-S
1
Tool Holder A35
3
13.3. LAVINA®38GR‐S TOP COVER ASSEMBLY AND MOTOR SUPPORT PARTS Model
42
No.
Item No.
Description
Pcs.
L38GR-S
1
L40G-17.00.00
Engine Tensioning Unit
1
L38GR-S
2
M10x25 DIN 6921
Bolt
4
L38GR-S
3
М8х60 DIN7991
Screw
1
L38GR-S
4
L40G-22.00.00
U-joint
1
L38GR-S
5
L38G-S-23.00.00
Front Top Guard
1
L38GR-S
6
L38G-S-10.00.16
Front Down Guard
1
L38GR-S
7
M12DIN934
Nut
2
L38GR-S
8
M12DIN127B
Spring Washer
2
L38GR-S
9
L32-00.00.00.00.02
Bolt
2
L38GR-S
10
M5x12 DIN 6921
Bolt
16
L38GR-S
11
M8x16 DIN 6921
Bolt
6
L38GR-S
12
L38GR-S-26.00.00
Left Top Cover Base
1
L38GR-S
13
L38GR-S-27.00.00
Right Top Cover Base
1
L38GR-S
14
L38GR-S-10.00.13
Rear Down Guard
1
L38GR-S
15
L38GR-S-20.00.00
Rear Top Guard
1
L38GR-S
16
L38G-S-21.00.00
Top Cover Assembly
1
L38GR-S
17
M8x20 DIN 7380F
Screw
6
L38GR-S
18
OMEGAHP8008MHP50
Down Timing Belt
1
L38GR-S
19
OMEGAHP8008MHP30
Top Timing Belt
1
L38GR-S
20
PK698-6
1
L38GR-S
21
L38G-S-25.00.00
Belt
Generator Guard
Assembly
1
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
13.4. LAVINA®38GR‐S PLANETARY DRIVE PARTS Model
No.
Description
Pcs.
Endless Transmission Flat Belt
1
2
Item No.
TC-20 EF
L1730x30x2
L32S.17.00.00
L38GR-S
1
L38GR-S
L38GR-S
Planetary Tensioning Unit
1
3
L40G-10.00.14
Люк
2
L38GR-S
4
M5x12 DIN 6921
Bolt
10
L38GR-S
5
M8x20 DIN 6921
Bolt
2
L38GR-S
6
L40G-10.00.12
Front carrier
1
L38GR-S
7
L38G-S-15.00.00
Engine base
1
L38GR-S
8
M12x25 DIN 6921
Bolt
6
L38GR-S
9
L38G-10.00.01
Disc
1
L38GR-S
10
L32-01.02.00.00.01
Fork
1
L38GR-S
11
M8DIN7980
Spring Washer
4
L38GR-S
12
M8X20DIN912
Screw
4
L38GR-S
13
L38G-S-10.00.10
Pad for V-Ring
1
L38GR-S
14
TWVA00800
V-Ring Type A
1
1
L38GR-S
15
L40G-10.00.08
Носач за V-Ring
L38GR-S
16
DIN6885A14X9X50
Key
1
L38GR-S
17
L40G-10.00.03
Pulley Unit
1
L38GR-S
18
L38G-S-10.00.17
Front Washer
1
L38GR-S
19
М16х40 DIN7991
Screw
1
13.5. LAVINA®38GR‐S BOTTOM COVER ASSEMBLY PARTS 43
Model
No.
Item No.
Description
L38GR-S
1
L38G-S-16.00.00
Bottom Cover Ass.
Pcs.
4
L38GR-S
2
M5x12 DIN 6921
Bolt
24
L38GR-S
3
M6x16 DIN 6921
Bolt
3
L38GR-S
4
М6х10 DIN7991
Screw
36
L38GR-S
5
L25 LS.14.00.03
Outer Cover
3
L38GR-S
6
A37.00.01
Adaptor
3
L38GR-S
7
110X90X8.5
Felt Ring
3
L38GR-S
8
TWVA00800
V-Ring Type A
3
L38GR-S
9
L25LS-14.00.02
Flange
3
L38GR-S
10
D4X2X2500
Seal
1
L38GR-S
11
D6x2
„O-ring"
3
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
13.6. LAVINA®38GR‐S TRANSMISSION BELT PARTS Model
No.
Item No.
Pcs.
M16X35DIN933
Description
Endless Transmission
Belt
Bolt
L38GR-S
1
OMEGAHP28008MHP73
L38GR-S
2
L38GR-S
L38GR-S
3
M16DIN127B
Spring Washer
1
4
L38G-19.00.00
Central Pulley
1
L38GR-S
5
DIN6885A12x8x56
Key
1
L38GR-S
6
M8x25DIN933
Bolt
6
L38GR-S
7
M8DIN7980
Spring washer
11
L38GR-S
8
M10DIN934
Nut
2
L38GR-S
9
M8x40DIN933
Bolt
3
L38GR-S
10
L32C.14.20.04
Spindle
1
L38GR-S
11
M8DIN934
Nut
2
L38GR-S
12
L25L-10.00.07
Support
1
L38GR-S
13
L25L-10.00.08
Washer
2
L38GR-S
14
L40G-10.00.07
Support
1
L38GR-S
15
L40G-10.00.05
Sector 1
1
L38GR-S
16
L38GR-S-14.00.00
Tensioning Support
1
1
1
L38GR-S
17
L40G-10.00.06
Sector 2
1
L38GR-S
18
L38G-S-10.00.04
Cap
1
13.7. LAVINA®38GR‐S PULLEY UNIT PARTS Model
No.
Item No.
Description
Pcs.
L38GR-S
1
L38G-S-11.00.00
Disc Assembly with Planetary Pulley
1
L38GR-S
2
L38G-13.00.00
Driving Pulley Unit
1
L38GR-S
L38GR-S
3
L38G-12.00.00
Pulley Unit Assembly
2
4
M8X30DIN7991
Screw
8
13.8. LAVINA®38GR‐S CENTRAL SHAFT BEARING PARTS Model
No.
Item No.
Description
Pcs.
L38GR-S
1
6013
Roller Assembly
1
L38GR-S
2
L38G-S-11.00.01
Extension Shaft
1
L38GR-S
3
L38G-S-11.10.00
Disc Assembly
1
L38GR-S
4
M6x16DIN7991
Screw
6
L38GR-S
5
TWVL01700
V-Seal
1
L38GR-S
6
L32D.11.00.03
Cap
1
L38GR-S
7
6019
Roller Assembly
2
L38GR-S
8
L32D.11.00.04
Spacer
1
L38GR-S
9
L32D.11.01.00
Housing
1
L38GR-S
10
B95DIN471
Retaining Ring
1
L38GR-S
11
3208
Roller Assembly
1
L38GR-S
12
A80DIN472
Retaining Ring
1
L38GR-S
13
L32S.11.00.17
Planetary Pulley
1
L38GR-S
14
M8x30 DIN 912
Screw
6
44
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Owner’s Manual Original Language – Lavina ®38GR-S
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13.9. LAVINA®38GR‐S TOP COVER PARTS
Model
No
Item No.
Description
Pcs.
L38GR-S
1
L38G-S-21.00.00
Top Cover
1
L38GR-S
2
А29-30.00
Spray Unit
1
L38GR-S
2.1
H766-21
Knob Bolt
1
L38GR-S
3
M5x20DIN933
Bolt
2
L38GR-S
4
M5DIN125A
Washer
2
L38GR-S
5
M5DIN985
Nut
5
L38GR-S
6
M5 DIN 9021 A
Washer
3
L38GR-S
7
L32D.01.01.00
Vacuum Port
1
L38GR-S
8
M5X16DIN84A
Screw
3
L38GR-S
9
L32S.01.01.00
Vacuum Port
1
L38GR-S
10
L32S-01.20.00
Water Fitting
1
L38GR-S
11
M12DIN125A
Washer
1
L38GR-S
12
M12DIN985
Nut
1
13.10 LAVINA® 38GR‐S ENGINE BASE PARTS 45
Model
No.
Item No.
Description
Pcs.
L38GR-S
1
FX921V-BS00-S
Kawasaki Engine
1
L38GR-S
2
M8X25DIN7991
Screw
2
L38GR-S
3
L38GR-S-18.00.01
1
L38GR-S
4
L38G-S-18.00.02
L38GR-S
5
F33008
Engine Base Plate
Tensioning Device
Support
Washer
4
1
4
L38GR-S
6
F33622
Washer
L38GR-S
7
F13107
Bolt
4
L38GR-S
8
L38GR-S-18.20.03
Clutch Washer
1
L38GR-S
9
11233
Electric Clutch
1
L38GR-S
10
61908
Roller Assembly
1
L38GR-S
11
DIN6885A6.22x6.22x25
Key
1
L38GR-S
12
L38GR-S-18.20.02
Pulley Unit
1
L38GR-S
13
L38GR-S-18.20.05S
Bolt Set
1
L38GR-S
14
L38G-S-18.00.03
Pin
1
L38GR-S
15
L38GR-S-18.11.00
Tensioner
1
L38GR-S
16
M6x16 DIN 6921
Bolt
1
L38GR-S
17
M8x20 DIN 6921
1
L38GR-S
18
L38GR-S-18.10.02
L38GR-S
19
M8DIN934
Bolt
Tensioning Device
Support
Nut
L38GR-S
20
M8DIN6923
Nut
2
L38GR-S
21
M6DIN127B
Tensioner Base Plate
1
L38GR-S
22
B10DIN471
Retaining Ring
1
L38GR-S
23
A125-1401
Generator
1
L38GR-S
24
M8x85 DIN 931
Bolt
2
L38GR-S
25
M10X16DIN7991
Screw
1
1
2
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
13.11. LAVINA®38GR‐S CARRIAGE PARTS Model
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Item No.
L38GR-S-21.00.00
M8DIN1587
M8DIN127B
M8DIN9021A
L32-02.00.00.00.02
L32D.22.00.00
M12DIN934
M12DIN127B
M12DIN125A
L38GR-S-22.00.00
L38GR-S-24.00.00
L32-02.05.00.00.00
M8x35 DIN 6921
M8 DIN433
M8DIN934
Description
Frame
Nut
Spring Washer
Washer
Pin
Handle Positioner
Nut
Spring Washer
Washer
Handle Assembly
Control Box L38GR-S
Pin Ass.
Bolt
Washer
Nut
L38GR-S
16
L38GR-S-28.00.00
Guard
1
44
L38GR-S-27.10.00
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
L38GR-S
17
18
19
20
21
22
23
24
25
26
27
28
L32R-00.00.42
M10DIN985
L38GR-S-20.00.05
DC35-12A
L32R-27.20.00
M8DIN934
L38GR-S-20.00.06
M10X20DIN6921
L32R-27.10.00
L32R-27.30.00
L32M-S-20.01.00
M20x1.5DIN439B
Lamp Unit Incl. Cable
Nut
Battery Guard
Battery
Gearmotor
Nut
Stud Bolt M8x175
Bolt
Wheel assembly
Wheel Bearing
Water Connection
Nut
2
2
1
1
2
2
2
4
2
2
1
1
45
46
47
48
49
50
51
52
53
54
55
56
L38GR-S-27.00.03
L38GR-S-27.00.04
L38GR-S-27.00.01
L38GR-S-27.00.02
L38GR-S-25.00.00
L38GR-S-27.20.00
A36.10.00
L32S.20.00.11
M5x20DIN7991
M5DIN9021A
M5DIN985
1040
46
Pcs.
1
2
2
2
1
1
4
4
4
1
1
1
8
6
6
No.
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
Item No.
10-16DIN3017
MAR 8.40
M12x60DIN931
L38GR-S-20.00.03
L38GR-S-20.00.04
M12DIN985
MAR 8.140
L38GR-S-20.30.00
M10X30DIN6921
L38GR-S-20.40.00
MAR 8.30
MAR 8.110
L38GR-S-26.00.00
M6x10 DIN 7380F
M8X20DIN6921
Description
Clamp
Tube
Bolt
Roller weight
Bush
Nut
Tube
Guideway
Bolt
Weight
Tube
Tube
Carrier regulator
Screw
Bolt
Left bottle holder
Assembly
Link
Long rubber pad
Right bottle holder
short rubber pad
Regulator set
Strap
Tank assembly
Upper Bracket
Screw
Washer
Nut
Water Pump
Pcs.
10
1
2
2
2
2
1
2
2
2
1
2
1
4
12
1
3
1
1
4
1
1
1
1
4
4
4
1
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
1/2013
13.12. LAVINA®38GR‐S STEERING BRACKET PARTS
Model
No.
Item No.
Description
Pcs.
L38GR-S
1
L32B-02.03.00.00.01-01
Sprocket
1
L38GR-S
2
L32B-02.03.02.00.00
Left Bracket
1
L38GR-S
3
L32B-02.03.03.00.00
Right Bracket
1
L38GR-S
L38GR-S
4
L32C.23.00.06
Screw
1
5
L32B-02.03.00.00.02
Spring
1
L38GR-S
6
L32C.23.00.21
Housing
1
L38GR-S
7
M6DIN125A
Washer
2
L38GR-S
8
M6X16DIN933
Bolt
2
L38GR-S
9
BO751-107-25M08
Knob
1
L38GR-S
10
L32-02.03.00.00.01
Washer
1
L38GR-S
11
L32-02.03.00.00.02
Teflon Washer
1
L38GR-S
12
L38GR-S-20.20.01
Cord Cover
1
L38GR-S
13
M5X25DIN7991
2
L38GR-S
14
L38GR-S-20.11.00
10
L38GR-S
15
M5X12DIN6921
Screw
Stand for
remote control
Bolt
L38GR-S
16
M6X25DIN912
Screw
8
L38GR-S
17
M6DIN7980
Spring Washer
10
L38GR-S
18
L38GR-S-29.00.00
Control Board
1
L38GR-S
19
M6X20DIN933
Bolt
4
L38GR-S
20
M5DIN125A
Washer
4
4
L38GR-S
21
M5DIN985
Nut
L38GR-S
22
M5X10DIN7991
Screw
4
L38GR-S
23
M12DIN125A
Washer
1
L38GR-S
24
M12DIN125A
Washer
1
L38GR-S
25
GN212.3-28-M12-E
Swivel Bolt
1
13.13 LAVINA®38GR‐S TOOL HOLDER PARTS Model
No.
Item No.
Description
Pcs.
L38GR-S
1
A35.10.00
Quick Change Assembly
1
L38GR-S
1.1
A31.12.00
Keylock Set
1
L38GR-S
2
M6X16DIN7991
Screw
4
L38GR-S
3
A25.00.10-K
Buffer with two screw
6
L38GR-S
3.1
M8X12DIN7991
Screw
12
L38GR-S
3.2
A25.00.10
Buffer
6
L38GR-S
4
A25.00.05-02
Spider
1
L38GR-S
5
M8X25DIN7991-10.9
Screw
4
L38GR-S
6
A31.20.00
Flange
1
47
4
Owner’s Manual Original Language – Lavina ®38GR-S
Superabrasive
1/2013
13.14 LAVINA® 38GR‐S ENGINE PARTS Model
No.
Item No.
L38GR-S
Description
Pcs.
Kawasaki FX921V-BS00-S
1
Retaining clamps
2
L38GR-S
A
L38GR-S
B
11011-7050
Cap - AIR FILTER
1
L38GR-S
C
11011-7047
Case-AIR FILTER
6
L38GR-S
D
11013-7044
Primary Element -AIR FILTER
1
L38GR-S
E
11013-7045
Secondary Element -AIR FILTER
1
L38GR-S
F
11065-7008
Cap
1
L38GR-S
G
FX 921V-11.00.00
Cat Muffler Assy.
1
L38GR-S
H
49065-7010
Oil Filter
1
1
L38GR-S
I
W1325
Oil Pressure Switch
L38GR-S
J
K59071-7004
Joint
1
L38GR-S
K
FE17409029909
Oil Drain Valve
1
13.15 LAVINA® 38GR‐S TANK ASSEMBLY PARTS Model
48
No.
Item No.
Description
Pcs.
L38GR-S
1
Tank
1
L38GR-S
2
A29.50.00
Regulator
1
L38GR-S
3
1/2"
Filter
1
Superabrasive
Owner’s Manual Original Language – Lavina ®38GR-S
14. Lavina® 38GR-S Control Box Parts
1/2013
LAVINA®38GR‐S CONTROL BOX PARTS Model
L38GR-S
No.
Item No.
1
L38GRS-30.20.00
L38GR-S
2
L38GRS-30.19.00
L38GR-S
3
HATOX set
L38GR-S
4
L38GRS-29.00.00
L38GR-S
4.1
L38GRS-29.00.41
L38GR-S
4.2
W9999
L38GR-S
4.3
L38GRS-29.00.43
Description
Panel socket
ass./motor/F
Panel socket
ass./motor/F
Remote control set
Control panel.with
conn.end plug
Cable Gland
Pcs.
No.
Item No.
Description
Pcs.
1
19
L32-02.06.00.00.00
Lamp Unit Incl. Cable
2
1
20
L20NS-30.10.01
Cable Gland
7
1
21
L20NS-30.40.00
Water Pump with Cable
1
1
21.1
L20NS-30.40.01
Cable for Water Pump
1
1
21.2
1040
Water Pump
1
1
22
DC35-12A
Battery
1
1
22.1
L38GRS-30.22.10
Red cable
1
L38GR-S
4.4
W1330
Pump switch
Emergency Stop
Button
Clutch switch
1
22.2
L38GRS-30.22.20
Black cable
1
L38GR-S
4.5
W4313
Hour Meter
1
23
L32R-S-HV-30.00.11
Automatic Switch 2А
1
L38GR-S
4.6
L20NS-30.10.13
Switch ON/OFF
1
24
L38GRS-30.11.24
Circuit Breaker 25A
1
L38GR-S
4.7
W1301
1
25
L38GRS-30.11.25
Rail /for terminal block/
1
L38GR-S
5
L32SHV-30.40.00
Start/Stop switch
Plug on Control Board
ass./female/
1
26.1
L32R-S-HV-30.29.10
Power Unit
1
L38GR-S
6
L38GRS-40.11.06
Rail Cover
1
26.2
L32R-S-HV-30.29.20
L38GR-S
6.1
L38GRS-40.11.61
1
26.3
L32R-S-HV-30.29.30
L38GR-S
7
L38GRS-30.11.07
1
26.4
L32R-S-HV-30.29.40
Communication Module
1
L38GR-S
8
WK6U6blue
3
27
L20NS-30.11.06
Rail Bracket
6
L38GR-S
9
WK4U4grey
Rail Cable Guide
Rail /for terminal
block/
Terminal
Terminal
Module with 8 Digite
Outputs
Processor
20
28
L20NS-30.11.05
Rail/12V/
1
1
1
L38GR-S
10
WK6U6grey
Terminal
2
29
L20NS-30.11.04
Rail Base
6
L38GR-S
11
L32SHV -30.11.01
Circuit Breaker 10A
1
30
GY001
Gyro
1
L38GR-S
12
L32RS -30.11.05
6
31
L38GRS-30.10.31
LED /yellow/
1
L38GR-S
13
L32R-S-HV-30.00.02
2
31.1
L38GRS-30.10.31-1
Resistor
1
L38GR-S
14
L32R-S-HV-30.00.06
1
32
L20NS-30.10.12
LED /green/
1
L38GR-S
15
L32R-S-HV-30.00.05
1
33
I1K-0.25
Resistor
1
L38GR-S
16
L38GRS-24.00.02
Rail/24V/
Frequency Regulator
/Inverter Yaskawa/
Inverter with Load
Module
Automatic Switch 12V
150A
Metal box plate
L38GR-S
17
L38GRS-24.00.01
L38GR-S
18
L32R-S-HV-30.13.00
L38GR-S
18.1
L38GR-S
18.2
1
34
D1K-0.25
Diode
1
1
35
A125-1401
Generator
1
2
35.1
L38GRS-30.33.01
Cable Gland
1
L32R-S-HV-30.13.10
Metal box
Electro motor with
cable
Cable 4x1
2
35.2
L38GRS-30.35.20
Red cable for starter
1
L32R-S-HV-30.13.20
Electro Motor
2
36
CC01-25968
49
12v
Wire Connector
1